Grand himself has never attended the Marine Corps ball, but it has become quite the tradition for members of the military to ask celebs to join them at the event.

"It wasn't that long ago, not even a couple years ago even, that 'don't ask, don't tell' was repealed, so this is new territory and I am very honored to be part of moving this country forward morally and politically — and in a way that I believe in so strongly," Grand said.

"I think me and Tanner are going to have a great time," Grand said. "He seems like a sweet guy and he's a very accomplished member of our military and has done a lot for both our country and the LGBT movement."

Courtesy Tanner White

Timothy Hiatt / Getty Images

"When I saw his response, my stomach dropped and my heart skipped a beat," Marine Tanner White told BuzzFeed News of his reaction to the video. "I'm very excited and can't wait to have a wonderful night with Steve!"